code: def _shutdown(self):
      sys.stderr.flush()
  
file_path: metaflow/metaflow/plugins/debug_monitor.py
imports: import sys
  from metaflow.sidecar import MessageTypes, Message
  from metaflow.monitor import NullMonitor, Metric
label_desc: Use image node_id 3 for calling the DebugMonitorSidecar obj's underlying member method code with example usage: obj._shutdown() without return types